[Tagging] Feature Proposal - RFC - landuse bush

[Bert -Araali- Van Opstal]

Regarding  Martin's remark:

> there is barrier=hedge for intentionally cultivated scrub

That is very true and a very useful tag when it is in regard to
"cultivated scrub" that is planted on a boundary or has a barrier function.
It is very well described on our wiki and on wikipedia, that a hedge is
a feature with primarily barrier or boundary function.
I know that there sometimes appears confusion whether or not we should
use a "barrier" tag if a hedge has a primarily decorative function.
However, the way it is defined looks good and clear to me, it has either
a barrier or boundary function, where boundaries does not mean by
default that it has a barrier function. So decorative hedges perfectly
fit under the bariier=hedge tag since they have a boundary function, to
create a decorative boundary.

This doesn't however resolve the issue for the natural=scrub being
according to the wiki by definition being located on "uncultivated"
land. It is also perfect to understand why our users are searching for a
different tagging scheme in this particular case, the "hedge" or "shrub"
or "scrub" being referred to, as I can recall from the example pictures
in the proposal, have no barrier, neither a boundary function. To that
one can add the reasoning that hedges, if we refer to our wiki or
wikipedia, is a term mostly, if not by definition, used in conjunction
with a linear feature, although, we allow the tag on areas for obvious
reasons.  One can argue but the given examples and the solution one is
looking for here are clearly not linear features, not even close.

So I remain with my point of view, that scrub, combined or not with a
managed key is the best way to go.  Moreover to delete the
"uncultivated" description from the scrub wiki, since it limits the use
of this natural value, which primary purpose is to describe the type of
vegetation, not it's use , cultivation or maintenance, so to my opinion
definitively incorrect. It also gives an opportunity now to reach a
consensus, that we should link to barrier=hedge from natural=scrub to
make clear that it is preferred to use that tagging scheme when the now
managed or cultivated scrub has a barrier or boundary function, either
decorative or not.

Greetings, Bert Araali

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